The orange on the Cake
Citrus Dollar - cUSD
Built on Citrea, the Citrus Dollar protocol preserves Bitcoin’s core principles by enabling decentralized and immutable lending, eliminating the need for wrapped BTC or third-party trust. User collateral is never reused or redirected — every position remains fully transparent and verifiable on-chain.
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Citrea execution layer
Citrea enhances Bitcoin with zero-knowledge technology, creating the most secure and trust-minimized way to scale. It keeps Bitcoin’s core values intact while enabling greater utility.
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Citrus Dollar Protocol in Numbers
How the Protocol Works for You:
Native Bitcoin
Lending
Borrow cUSD against your Bitcoin collateral — secure, non-custodial, and on attractive terms with Citrea.
How it works:
1
Bridge your BTC to Citrea Mainnet, the most secure and trust-minimized platform to use Bitcoin.
To Citrea Bridge
2
Turn your Bitcoin into working capital: deposit BTC as collateral and mint cUSD instantly, non-custodially, and without selling your BTC.
Citrus Dollar
Savings
Earn 10% APR on your cUSD when you deposit in the Savings module. It’s a simple, reliable, and automated way to let your money work for you.
Citrus Protocol Shares
Invest
Buy Citrus Protocol Shares, CIPS.
With that you benefit from fee income and liquidation gains. It also gives you the opportunity to actively participate in the governance of the protocol.
Get the cUSD and CIPS Token
Citrus Dollar (cUSD) and Citrus Protocol Shares (CIPS ) are ERC-20 token on Citrea mainnet.
cUSD
on Citrea Mainnet
Swap on chain
Deposit from Bank
CIPS
on Citrea Mainnet
Swap on chain
Deposit from Bank
cBTC
on Citrea Mainnet
Swap on chain
Deposit from Bank
FAQs
Got more questions?
How is the 10% Citrus Dollar yield generated?
The 10% annual percentage rate (APR) offered on Citrus Dollar savings comes from its overcollateralized lending model, where users lock up volatile crypto assets (such as BTC) to mint Citrus Dollar stablecoins. These locked assets effectively back the issuance and are subject to stability fees or interest, which fund the yield paid to depositors. In this sense, the yield isn’t created “out of thin air,” but comes directly from users who pay to access liquidity via Citrus Dollar, similar to how borrowers pay interest in traditional finance.
How does it maintain a USD peg?
Citrus Dollar maintains its 1:1 peg to the US Dollar through decentralized collateralization: each Citrus Dollar token is backed by crypto assets with a value significantly higher than the value of Citrus Dollar in circulation. If collateral values fall, automated liquidation mechanisms ensure the system stays solvent. No centralized entity is responsible for the peg—it is enforced algorithmically through smart contracts and collateral requirements.
How are Citrus Dollar stable tokens minted?
Citrus Dollar tokens are minted when users deposit Bitcoin as collateral in the protocol’s smart contracts. Based on the collateral’s value and required collateralization ratios, users can generate new Citrus Dollar tokens, which they can then spend, save, or trade. This process is entirely on-chain and permissionless, meaning anyone can mint Citrus Dollar by providing sufficient collateral.
What safeguards are in place to prevent depegging events?
Citrus Dollar relies on several safeguards: Overcollateralization: Users must always deposit more value in collateral than the Citrus Dollar they mint. Liquidation mechanisms: If collateral values drop below the required ratio, smart contracts automatically liquidate collateral to cover outstanding Citrus Dollar, keeping the system solvent. Decentralization and transparency: All collateral, debt positions, and liquidations are visible on-chain, so anyone can verify the protocol’s health in real time. No centralized custodians: Since the system doesn’t rely on a single custodian or oracle, there’s no central point of failure.
Ecosystem
On- and off-ramps, Apps, Providers of Tokenization of shares, Bridges and Merchants bring the Citrus Dollar ecosystem to life.
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Code Audits
Built for uncompromising safety and reliability: The Citrus Dollar protocol is permissionless, immutable, and independently audited by leading security firms.
Trustless Bitcoin Lending
The Citrus Dollar qualifies as a crypto-asset under MiCA and is most likely classified as an e-money token. However, Citrus Dollar is generated by a decentralized protocol that operates without central organization or control by the customer, any other legal entity, undertaking, or natural person. As a result, there is no "identifiable issuer" associated with the Citrus Dollar.
Bug Bounty
We want the Citrus Dollar protocol to be the best it can be, so we’re calling on our community to help us find any bugs or vulnerabilities. Submit a bug here through our community driven bug bounty program on Compass Security.
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